Align the key on top of its place on the Dell Inspiron B130 keyboard, and press down evenly. All four corners of the key should click into place. The Dell laptop keyboard is connected to the motherboard via a flat ribbon cable. Before you can release the cable and remove the laptop keyboard, the connector must be unlocked. Be very careful. The keyboard connector is permanently attached to the motherboard. If you accidentally damage the connector, you’ll have to replace the whole motherboard.Don's be surprised, it is possible to replace individual keys on your laptop keyboard! Note that the same laptop model can have several different types of hinge mechanisms under the Dell Inspiron B130 keyboard key. Some colors in the pictures may differ for your model. That is fine, what matters most is the shape of the hinge piece.The plastic hinge mechanism must be oriented as shown for it to fit onto the metal Dell Inspiron B130 keyboard hooks without breaking. Notice the hole on the left side of the hinge is narrower than the hole on the right side. Hook the left side of the hinge over the left metal hook on the base of the laptop keyboard. This works best at about a 45 degree angle."Stretch" the hinge over the right metal hook on the Dell Inspiron B130 keyboard base. The hinge can actually slide apart slightly, which allows it to fit over both metal tabs on the Dell laptop keyboard base. Once it is sitting in place as shown, it will be easier to put the key on if you "compact" the hinge back together. That is, push the right-side underneath portion of the hinge towards the left. The hinge should now fit snugly in it's place.If you are replacing the Dell Inspiron B130 keyboard because of missing or broken keys, check out my previous post about fixing individual Dell laptop keyboard keys. Maybe it’s not necessary to replace the whole keyboard.